Order of declaring variables and performance

**babu198649** · 11th November 2009, 08:35

Hi,
I have found the below code in qpoint.h file

Qt Code:

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#if defined(Q_OS_MAC)
    int yp;
    int xp;
#else
    int xp;
    int yp;
#endif

#if defined(Q_OS_MAC)
    int yp;
    int xp;
#else
    int xp;
    int yp;
#endif

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Does changing the order of declaration variabes affect the performance.

**yogeshgokul** · 11th November 2009, 09:12

Originally Posted by babu198649

Does changing the order of declaration variabes affect the performance.

Never...

**babu198649** · 11th November 2009, 14:59

then why does the qpoint.h file changes the order of definations of variables differently on different platforms.

**wysota** · 12th November 2009, 03:20

To make the code look smarter?

Actually the order of variables can influence some things (performance included, probably), but not in this case.

Thread: Order of declaring variables and performance